Heating system



MQiCh 27, 1928.

W. W. BRISSON HEATING SYSTEM Filed April '7, 1927 I I Qwoentoz M547 WZfi/ mzwm Patented Mar. 27, 1928.

1 UNITED STATES WALTER WILLIAM BRISSON, OF NORWAY, MICHIGAN.

HEATING SYSTEM.

Application filed April 7,

This invention has reference to a heating device especially designed for use in connection with railway switches so that the switches equipped with devices of this type will be free of ice and snow at all times to insure the operation of the switches.

Another object of the invention is to provide a device of this character to be readily and easily positioned, novel means being provided for insuring a fluid-tight connection between the device and the rail to prevent short circuiting.

\Vith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawing:

Figure 1 is a plan view of a rail equipped with a heating device constructed in accordance with the invention, the rail and portion of the casing being broken away.

Figure 2 is a side elevational view of a rail equipped with a heating device, the easing of the heating device being removed.

Figure 3 is a sectional View taken on line 3-3 of Figure 1.

Figure 4 is an enlarged sectional view through the heating device.

Referring to the drawing in detail, the reference character 5 designates an electric heating device embodying a plurality of spaced plates 6 between which the heating element 7 embodying a resistance coil 6 is located, the plates and heating element being substantially long to heat an appreciable length of the rail, to which the device is secured.

The heating element and plates are insulated from the rail by means of the insulators 8 arranged at each end of the device, the securing screws for securing the heater to the rail being indicated at 9 and as shown,

1927. Serial No. 181,801.

pass through the plates and heating element, the inner ends thereof being positioned in threaded openings formed in the rail.

Forming an important part of the invention is the casing, and as shown, the type of casing indicated by the reference character 10 embodies an upper inwardly extended flange 11 having a downwardly extended portion 12 adapted to closely lit against the rail, there being provided a layer of insu lating material disposed between the edges of the casing and the rail, insulating the casing therefrom.

The ends of the casing are closed by means of the end members 13, which are provided with openings aligning with openings of the casing for the reception of the securing screws 14, which are employed for securing the heater in position.

The casing shown as used in conjunction with the casing 10 and indicated by the reference character 15, is especially designed for-use under the tread of a rail, and as shown, the casing is provided with inwardly extended flanges 16 to which are secured insulating strips 17 to provide a fluid-tight connection between the casing and rail.

It is to be understood that the casings are provided with interior insulating strips 18 formed of heat resisting material so that the heat generated by the heating coils will be directed to the rail.

I claim:

A heating device embodying spaced plates, a heating element arranged between the spaced plates and disposed in spaced rela tion with the plates, means for securing the heating element and spaced plates to a supporting surface, a casing embodying a front plate having inwardly extended flanges formed along the side edges thereof. said flanges adapted to fit between the base and tread of a rail, and insulating strips carried by the casing.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature.

WALTER WILLIAM BRISSON. 

